#ifndef __BUZZER_H
#define __BUZZER_H

#include "stm32f10x.h"


// PC9
#define buz_h()     { GPIOC->BSRR |= (unsigned int)0x1 << (9 * 1); } 
#define buz_l()     { GPIOC->BRR |= (unsigned int)0x1 << (9 * 1); }

void buzzer_init(void);

#endif

